Systems and methods for communicating with a magnetic reader head

A method for communicating from a portable device to a merchant point-of-sale (POS) device, the POS device including a magnetic reader head proximate a transaction card swipe path, said method comprising:

• receiving, in a memory of the portable device, a first data file containing data corresponding to each standard field in at least one of an ISO/IEC 7813 Track 1-compliant record and an ISO/IEC 7813 Track 2-compliant record;
• and
• transmitting, from a transmitter of the portable device while the portable device is outside of the transaction card swipe path, a changing magnetic field to the magnetic reader head of the POS device, wherein the changing magnetic field has a waveform corresponding to polarity changes in the first data file.

A non-transitory computer-readable storage media having computer-executable instructions embodied thereon for causing communication from a portable device to a merchant point-of-sale (POS) device, the POS device including a magnetic reader head proximate a transaction card swipe path, wherein when executed by a processor of the portable device, the computer-executable instructions cause the portable device to:

• receive, in a memory of the portable device, a first data file containing data corresponding to each standard field in at least one of an ISO/IEC 7813 Track 1-compliant record and an ISO/IEC 7813 Track 2-compliant record;
• and
• transmit, from a transmitter of the portable device, a changing magnetic field of sufficient strength to be received by the magnetic reader head of the POS device while the portable device is outside of the transaction card swipe path, wherein the changing magnetic field has a waveform corresponding to polarity changes in the first data file.